Edge-tool sharpener.



W. E. WINTER.

EDGE TOOL SHARPENER. APPLICATSON FILED AUG.II, 191s.

Patented Feb. 20,1917.

AT'Ton NEY.

WTED WTATE PATENT CFFTCE.

WILLIAM E. WINTER, OF NEW BRITAIN, CONNECTICUT, ASSIGNOB 0F ONE-FOURTH T0 FRED S. FLETCHER, OF FORESTVILLE, CONNECTICUT, AND ONE-HALF TO THE FLETCHER-TERRY COMPANY, OF FORESTVILLE, CONNECTICUT, A CORPORATION OF CONNECTICUT.

EDGE-TOOL SHARPENER.

To all whom it may concern:

Be it known that I, WILLIAM E. WINTER, a citizen of the United States, residing at New Britain, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Edge-Tool Sharpeners, of which the following is a specification.

This invention relates to edge-tool sharpeners. As may be inferred this article can be used with advantage for sharpening or grinding various kinds of edge tools of which knives and shears are two of several illustrations. One of the objects of the invention is to provide a device of the character set forth, which is simple in construction, light yet strong, inexpensive to make and which can be easily manipulated to secure the desired function by a minimum exertion of power. There are other objects and advantages comprised within the invention which with the foregoing will be stated at length in the following description, wherein I will set forth in detail that particular form of embodiment of the invention which I have illustrated in the drawings accompanying and forming part of the present specification. As will be clear, I do not restrict myself to this exact construction; I may depart therefrom in several respects within the scope of the invention defined by the claims following said description.

Referring to said drawings:

Figure 1 is a side elevation of a sharpener involving the invention.

Fig. 2 is a sectional view of a sharpening member, its supporting shaft and certain other elements hereinafter more particularly described.

Like characters refer to like parts in both views.

While the device constituting the subject matter of the present case is susceptible in a measure of general use, it is of prime importance when used as a kitchen adjunct for sharpening or grinding various kinds of household implements, such as knives and shears which as I have already observed are merely two of several different kinds of tools which can be subjected to the action of the appliance. The device comprises in its make up a diagonally or obliquely disposed grinding or sharpening member rotated preferably manually in some convenient manner.

Specification of Letters Patent.

Patented Feb. 20, 1917..

Serial No. 114,326.

Owing to this particular disposition of the grinding orsharpening member, it is presented in a highly convenient way to the user.

With the foregoing general remarks I will now describe more fully the particular disclosure made by the accompanying drawings. The various parts may be sustained in any desirable manner, the post or upright 2 being illustrated for this purpose. As shown this post or upright has a projecting base or foot 3 shown as fiat on its under side to fit the corresponding upper surface of a table or other suitable support as A. As represented the base or foot has one or more laterally projecting lugs or ears as 5 which may be perforated to receive a screw or screws as 6 to rigidly hold the machine in position. This machine, as will be evident, can be readily dismounted and is readily and easily portable.

There is a grinding member such as that denoted in a general way by 7 The way in which the grinding member is supported will be hereinafter more particularly de scribed, although I might note that it is disposed at an angle to the vertical in the illustration made. The oblique disposition of the grinding member, however, might be otherwise obtained. This grinding member as represented is approximately of conical form. As a matter of fact it is frusto-coni cal, the large end being illustrated as down or in proximity to the base 3. As represented the grinding or sharpening member 7 comprises a body 8 of suitable material such as wood. This body might be of metal or it might be of composition, but wood answers satisfactorily. The active or sharpening surface of the core or body may be of any desirable nature, for instance I may apply to the exterior surface of the core or body 8 a cement or adhesive on which can be sprinkled powdered or ground emery or some equivalent abrasive substance, the abrading skin or coating of the core or body being denoted by 9.

The grinding member 7 may be carried in any suitable manner, the shaft 10 answering this purpose, the latter extending entirely through and extending from the ends of the grinding member to fit bearing openings as will hereinafter appear on the framing. This grinding member 7 in the Present instance rotates with the shaft 10, and this result can be obtained in any desirable way as by the screw 11 extending through an opening in the grinding member and binding substantially against the shaft. This shaft is obliquely disposed, its lower end being shown as stepped in an obliquely disposed socket or bearing opening 12 in the upper side of the base or foot 3 near the outer end thereof. The upper end of the shaft projects through a bearing opening in an arm as 13 extending from the top of the post or upright 2, this arm being at right angles to the axis of rotation of the grinding member.

There are varlous Ways 1n whlch the grinding member may be rotated. As repremember 16 may sented'it is equipped at its upper extending end with a bevel pinion 14 rotative therewith, the upper end of the shaft 10 being fitted in a co-unterbore 15 in the upper side of the pinion and being headed over the bot tom of the counterbore. Supported for rotation by the outer side of the post or upright 2 is a master bevel gear 16, the teeth of whichare in mesh with those of the pinion 14. Owing to the difference in size between the two gears, it will be apparent that when the gear member 7 will high velocity.

Copies of this patent maybe obtained for five cents each, by addressing the left. In the construction shown the tool will stand vertically so as to bring its cutting edge in proper relation to the roughened or grinding surface of the grinding member. The tool to be sharpened is drawn back and forth over the periphery of the grinding member as the latter is turned. The tool can be quickly and easily sharpened.

What I claim is:

1. A machine of the class described comprising an upright provided with a laterally extending base, an approximately conical grinding member at one side of and at an angle to the upright, said grinding member having shaft means projecting from the ends thereof, one of the shaft means being supported by said base, the upright having means to support the other shaft means, and means carried by the upright for rotating said grinding member.

2. A machine of the class described comprising an upright provided with a base having an oblique socket, an approximately conical grinding member, a shaft extending entirely through the grinding member and projecting from the ends thereof, one projecting portion being disposed in said socket, the upright having a bearing to receive the other projecting end of the shaft, a pinion rotative with the shaft, and a manually operable gear supported by the upright and in mesh with said pinion.

In testimony whereof I afiix my signature in the presence of two witnesses.

WILLIAM E. WINTER.

Witnesses:

JOHN BUoKLEY, HEATH SUTHERLAND.

Commissioner of Patents,

Washington, D. C. 

